Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Backlight deviced and control method thereof

A backlight device and backlight control technology, applied in lighting devices, lighting device parts, optics, etc., can solve the problems of large size and difficult to set backlight units, etc.

Inactive Publication Date: 2007-02-28
PHICOM CORP
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not easy to set on the backlight unit due to its still heat problem and its large size

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlight deviced and control method thereof
  • Backlight deviced and control method thereof
  • Backlight deviced and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0041] FIG. 2 is an exploded perspective view of the backlight device of the present invention. FIG. 3 is an assembled front view of the backlight device of the present invention. FIG. 4 is a side view of FIG. 3 . Fig. 5 is a first embodiment of an assembled state of the LED unit and the substrate. FIG. 6 is an enlarged perspective view of part A of FIG. 5 . 7 is a perspective view of an assembled state of an LED unit and a substrate according to a second embodiment of the present invention. FIG. 8 is an enlarged perspective view of part B of FIG. 7 . FIG. 9 is an enlarged perspective view of part C in FIG. 7 . 10 is a perspective view of an assembled state of an LED unit and a substrate according to a third embodiment of the present invention. FIG. 11 is an enlarged perspective view of part D in FIG. 10 . FIG. 12 is a flow chart of the backlight con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a backlight device and control method thereof, including a case (100); a base substrate (120) installed inside the case (100), and a plurality of LED units (110) modularized and mounted on the base plate (120). In case a part of the plurality of LED units mounted on the base plate is in trouble, a local replacement of an LED unit is possible, so the repair and maintenance are simple and time consuming is short. Further, each of the plurality of modularized LED units is individually controlled in brightness. Therefore, brightness is uniformized among the plurality of LED units to advance the detection precision and the product reliability. In the modularized LED units which can be controlled respectively, the LED units arranged on the substrate fringe have higher brightness, so the brightness deviation is reduced. In addition, the LED units are small in themselves so a plurality of LED units are adjacently arranged to reduce the brightness deviation. Further, a reflecting plate is disposed integrally on the massive substrate of a plurality of LED units of the arranged units, which can simplify the component parts.

Description

technical field [0001] The present invention relates to a backlight device and its control method of liquid crystal panel illumination detection equipment, more specifically, to a backlight device which is easy to maintain and eliminates the uneven brightness of each LED unit and its control method. Background technique [0002] A liquid crystal display (Liquid Crystal Display: LCD) device is usually disposed inside the LCD panel, and is provided with a driving circuit operated by a microprocessor to display images on the LCD panel. [0003] On the other hand, in the manufacturing process of the LCD panel, illumination inspection is performed at the final stage. This LCD panel illumination detection device uses a detection device to respectively send electrical signals to the data lines and gate lines of the LCD panel to drive the driving circuit of the LCD panel. In addition, since the liquid crystal display itself cannot emit light for displaying images, a light source mu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/133G09G3/34G02F1/1335F21S2/00F21V23/00F21V23/04F21Y101/02H01L33/48
CPCG02F1/133603G02F1/133608G02F1/133611G02F1/133314
Inventor 崔英民
Owner PHICOM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com